Auxiliary safe-loce



A. S. AILES.

AUXILIARY SAFE LOCK.

APPLICATION FILED IAN.2o. 1920.

1,350,766. 'Patented Aug. 24, 1920.

C) am ya f ADRIAN S. AILES7 OF CHICAGO, ILLINOIS, ASSIGNOR OF SIXTY PERCENT. T0 JOHN I-.

TAFT, OF CHICAGO, ILLINOIS.

AUXILIARY SAFE-LOCK.

lSpecification of Letters Patent.

Patented Aug. 24, 1920.

Application filed January 20, 1920. Serial No. 352,701.

To all whom it may concern: Be it known that I, ADnrAN S. AILES, acitizen of the United States, residing at Chicago, in the county of Cookand State of Illinois, have invented a new and useful Improvement inAuxiliary `Safe-Locks, of which the following is a specication.

This invention relates to auxiliary safelocks and is particularlyadapted for use in connection with the ordinary forms of locks for safesand vaults.

An object of this invention is to provide an auxiliary lock which willoperate to lock the door of the safe when the main lock has beentampered with, so that if the main lock is burned out as by anOxy-acetylene flame or is blown lout with an explosive, the bolt of theauxiliary lock will be released vand will prevent the door being opened.

This Aand other objects are accomplished by my invention which is fullydescribed in the following specification and shown in the accompanyingdrawings in which Figure 1 is a partial rear elevation of a safe orvault door showing' my auxiliary lock as applied to the ordinary safelock; Fig. 2 is an venlarged partial section on the line 2h2 of Fig. 1,and Fig. 3 is a section on the line 33 of Fig. 2.

I have illustrated my invention as applied to the door 10 of a safe orvault 11, having the ordinary form of lock 12 which has an operatingmember 13 operatively attached by means of a bar 14 to a series of bolts15. A bolt 16 is also operated at the same time in a well known mannerby means of a bell crank 17.

The invention consists of an additional bolt 18 which is carriedpreferably in a pipe 19 which is freed at its forward end and screwedinto a stationary part lOfL of the door 10. rIhe opposite end 19n ofthis pipe is closed and is screwed into a block 2O which rests againstthe inner face of the door.

The bolt 18 is pressed outwardly by means of the spring 21 which issupported upon the closed end 19a of the pipe. The bolt has an annulargroove 18 which is adapted to be engaged by a detent 22 which ispivotally supported by means of a bolt 23 on the block 20. The detent isnormally held infthe engaged position by means of wires 24 and 24a whichpreferably pass over the main lock 12 and are secured to the posts 25and 25a and the adjusting screw 24". Springs 2G and 27 are pivotallyfastened to the detent and tend to disengage the detent from the bolts18. This is prevented, as previously stated, by the wire 24.

It will thus be seen that as long as the wire 24 is unbroken the detentwill hold the bolts 18 in the retracted position. The lock will thenoperate in the usual manner to lock and unlock the door of the safe. If,however, the main lock 12 is blown out, as by a charge of nitroglycerinthat part of the wire 24 which lies between the posts 25 and 25a will bebroken and the springs 26 and 27 will raise the detent 22 releasing thebolt 18 which will then be forced forward to the dotted line positionshown in Fig. 2, thereby securely locking the door of the safe eventhough the safe blowers are able to withdraw the bolts of the main lock.

It very frequently happens, however, that an Oxy-acetylene torch is usedto burn the lock away. In that case one of the wires 24 or 24"L will beburned in two and the bolt 18 released as before' V\7hile I have shownand described but a single embodiment of my invention, it is to beunderstood that it is capable of many modifications. Changes thereforein the construction and arrangement may be made without departing fromthe spirit and scope of the invention as disclosed in the appendedclaims, in which it is my intention to claim all novelty inherent in myinvention as broadly as possible in view of the prior art.

What I claim as new and by Letters Patent is:

1. In combination, a safe having a door, a main lock thereon, anauxiliary lock bolt, aA detent normally holding said auxiliary lock boltin an inoperative position, means tending to force the auxiliary lockbolt into 0perative position, means tending to disengage said detent, aflexible member secured at one end to said detent and at the other to astationary member whereby said flexible member when severed will releasesaid auxiliary lock bolt.

2. In combination, a safe having a door, a main lock thereon, anauxiliary lock bolt, a detent normally holding said auxiliary lock boltin an inoperative position, means tending to release the detent andmeans normally restraining said last-named means includ.

desire to secure ing a member associated With the main locking mechanismadapted to remove the restraint when itselfl released.

3. In combination, a safe having a door, a main lock thereon, anauxiliary lock bolt, a detent normally holding said .auxiliary lock boltin an inoperative position, means tending to force the auxiliary lockbolt into operative position, means tending to disengage said detent, aflexible member secured at one end to said detent and at the other to astationary member whereby said flexible member when severed will releasesaid aux# iliary lock bolt, said flexible member being stretched overthe combination box and the actuating bar of the main locking mechamsm.

4. An auxiliary lock adapted to be applied to the door of a safe havinga main lock, said auxiliary lock comprising a bolt, a spring normallypressing said bolt outwardly, a detent normally holding said bolt inretracted position against said spring, a spring acting torelease saiddetent and a Wire for retaining said detent in engage- L ment with saidbolt and adapted to be passed over the main lock so as to be broken ifsaid main lock is forcibly removed, thereby releasing said bolt.

ADRIAN S. AILES.

